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Fungi associated with tree roots
Charvátová, Markéta ; Baldrian, Petr (advisor) ; Gryndler, Milan (referee)
In contrast to the bulk soil environment, plant roots represent a habitat with higher nutrient availability due to the supply of photosynthesis-derived C-containing compounds. The roots thus support the life of various microorganisms that use such compounds, but the root-associated microbes in the same time may face a limitation in N and P availability. Unlike bacteria, many filamentous fungi are able to transport these compounds from soil and their mycelia thus typically extend into this environment. Ectomycorrhizal fungi are a typical example of this nutrition strategy. Tree roots produce exudates, that differ in thein composition for each species and they can also differ among individuals. It causes a high diversity of root-associated fungi. Soil is also inhabited by parasitic and saprotrophic fungi. Composition and activity of microbial communisies in the rhizosphere differ from the bulk soil. This work points at the differences of the rhizosphere and builk soil, the importance mycorrhizal fungi and it presents an overview of fungal species that have been found on the roots of spruce - Picea abies. Key words: fungi, mycorrhiza, soil, rhizosphere, Picea abies
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Mycorrhisa in fossil record
Kadlecová, Veronika ; Kvaček, Jiří (advisor) ; Gryndler, Milan (referee)
Mycorrhizal symbiosis is present in the vast majority of extant land plants. Mycorrhizae represent a significant source of nutrients for both partners of the symbiosis and can also provide them with protection or help them survive in less hospitable enviroment. Mycorrhizae is believed to have been just as important in the past and played a major role in evolution of plants, for example in the transition of plants onto land. Mycorrhizal symbiosis is an object of many research works today for its agricultural importance. There is an amount of publications on research of fossil mycorrhizae, but there is still little interest in this issue. Powered by TCPDF (www.tcpdf.org)
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Mycorrhisa in fossil record
Kadlecová, Veronika ; Kvaček, Jiří (advisor) ; Gryndler, Milan (referee)
Mycorrhizal symbiosis is present in the vast majority of extant land plants. Mycorrhizae represent a significant source of nutrients for both partners of the symbiosis and can also provide them with protection or help them survive in less hospitable enviroment. Mycorrhizae is believed to have been just as important in the past and played a major role in evolution of plants, for example in the transition of plants onto land. Mycorrhizal symbiosis is an object of many research works today for its agricultural importance. There is an amount of publications on research of fossil mycorrhizae, but there is still little interest in this issue. Powered by TCPDF (www.tcpdf.org)
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Fungi associated with tree roots
Charvátová, Markéta ; Baldrian, Petr (advisor) ; Gryndler, Milan (referee)
In contrast to the bulk soil environment, plant roots represent a habitat with higher nutrient availability due to the supply of photosynthesis-derived C-containing compounds. The roots thus support the life of various microorganisms that use such compounds, but the root-associated microbes in the same time may face a limitation in N and P availability. Unlike bacteria, many filamentous fungi are able to transport these compounds from soil and their mycelia thus typically extend into this environment. Ectomycorrhizal fungi are a typical example of this nutrition strategy. Tree roots produce exudates, that differ in thein composition for each species and they can also differ among individuals. It causes a high diversity of root-associated fungi. Soil is also inhabited by parasitic and saprotrophic fungi. Composition and activity of microbial communisies in the rhizosphere differ from the bulk soil. This work points at the differences of the rhizosphere and builk soil, the importance mycorrhizal fungi and it presents an overview of fungal species that have been found on the roots of spruce - Picea abies. Key words: fungi, mycorrhiza, soil, rhizosphere, Picea abies
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